Frequencies for first 10,000 rows of exercise variable in namcs1996 dataset :

   exercise |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,894       88.94       88.94
          1 |      1,106       11.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016